Actuator for an ink jet print head of the layered type with offs

Details Actuator for an ink jet print head of the layered type with offs Actuator for an ink jet print head of the layered type with offs

1996-06-27

2000-03-07

Barlow, John

Incremental printing of symbolic information

Ink jet

Ejector mechanism

347 70, 347 43, B41J 2045

Patent

active

060330589

ABSTRACT:
An actuator unit for an ink jet print head in which pressure generating chambers 30 and 31 are arranged in two linear arrays with a pitch P1 between the chambers in each linear array. The pressure generating chambers in one linear array are shifted by an amount equal to 1/4 of P1 with respect to the pressure generating chambers in the other linear array. A plurality of actuator units may be connected to a single flow path unit of the ink jet print head, and the nozzle openings in one actuator unit may be shifted by 1/2 of P1 with respect to the nozzle openings in another actuator unit, or they may be aligned. Various arrangements of the nozzle openings, the pressure generating chambers, and the actuator units can be employed to vary the resolution and to print different colors.

REFERENCES:
patent: 5252994 (1993-10-01), Narita et al.

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